12278004 has 12 divisors (see below), whose sum is σ = 28648704. Its totient is φ = 4092664.

The previous prime is 12278003. The next prime is 12278011. The reversal of 12278004 is 40087221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12278003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511572 + ... + 511595.

It is an arithmetic number, because the mean of its divisors is an integer number (2387392).

Almost surely, 2^12278004 is an apocalyptic number.

It is an amenable number.

12278004 is an abundant number, since it is smaller than the sum of its proper divisors (16370700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12278004 is a wasteful number, since it uses less digits than its factorization.

12278004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023174 (or 1023172 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 12278004 is about 3503.9982876708. The cubic root of 12278004 is about 230.6973416759.

The spelling of 12278004 in words is "twelve million, two hundred seventy-eight thousand, four".